The machine is specially used for the production of bubble film envelope bag, suitable for pearlized film, or aluminized film, coextruded film bubble film and other materials, (double /single fold) molding, after hot pressure transverse sealing, cutting knife cut into envelope bag products. Machine using motion computer control, man-machine interface, servo motor for traction, feeding uniform synchronization, photoelectric correction, is easy to operate, count section, automatic stop, no stop manual feeding, blade running smoothly, the envelope bag smooth and beautiful, bonding strong .